Median Intersection Design for Rural High-Speed Divided Highways
Author: Maze, T H | Size: 8.50 MB | Format:PDF | Quality:Original preprint | Publisher: Transportation Research Board | Year: 2010 | pages: 166 | ISBN: 9780309118309
This report describes common safety issues at median intersections on rural high-speed divided highways and presents innovative geometric and operational treatments for addressing those issues. Ten case studies illustrate how they have been applied in the field. The report includes recommendations for modifications to the AASHTO "A Policy on Geometric Design of Highways and Streets" (Green Book) and the "Manual on Uniform Traffic Control Devices" (MUTCD).
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Author: Lagasse, P F | Size: 12.77 MB | Format:PDF | Quality:Original preprint | Publisher: Transportation Research Board | Year: 2010 | pages: 178 | ISBN: 9780309118347
This report provides guidelines for practitioners to estimate the quantity of accumulated, flow event debris, based on the density and type of woody vegetation and river bank condition upstream and analytical procedures to quantify the effects of resulting debris-induced scour on bridge piers. The report should be of interest to bridge engineers, maintenance personnel and operations staff at state and local agencies.
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This report establishes a user's manual for the acceptance, repair, or rejection of precast/prestressed concrete girders with longitudinal web cracking. The report also proposes revisions to the AASHTO LRFD Bridge Design Specifications and provides recommendations to develop improved crack control reinforcement details for use in new girders. The material in this report will be of immediate interest to bridge engineers.
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herein a miscellaneous Excel sheets created by a famous consultant office
enjoy
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LRFD Design and Construction of Shallow Foundations for Highway Bridge Structures
Author: Paikowsky, Samuel G | Size: 8.50 MB | Format:PDF | Quality:Original preprint | Publisher: Transportation Research Board | Year: 2010 | pages: 147 | ISBN: 9780309154673
This report develops and calibrates procedures and modifies the AASHTO LRFD Bridge Design Specifications, Section 10 - Foundations for the Strength Limit State Design of Shallow Foundations. The material in this report will be of immediate interest to bridge engineers and geotechnical engineers involved in the design of shallow foundations.
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This guidebook provides insights from selected transportation agencies who are successfully integrating transportation performance management programs into a range of key decision-making processes in order to improve their effectiveness and transparency. This guidebook will assist transportation agency staff challenged with turning performance data into meaningful information that will influence agency decisions and actions. It should be of immediate use to those who have mastered the basics of performance measurement but who will benefit from a deeper understanding of what similar organizations have done in order to successfully integrate these systems into key decision-making processes.
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This guidebook provides guidance to state departments of transportation for using specific, practical, and risk-related management practices and analysis tools for managing and controlling transportation project costs. Containing a toolbox for agencies to use in selecting the appropriate strategies, methods and tools to apply in meeting their cost-estimation and cost-control objectives, this guidebook should be of immediate use to practitioners that are accountable for the accuracy and reliability of cost estimates during planning, priority programming and preconstruction.
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This report presents guidelines that will be of use to state departments of transportation, local governments, and consultants for the geometric design of driveways. It contains driveway-related terms and definitions, basic geometric controls, a summary of access spacing principles, and detailed discussions of various geometric design elements. The objective of the research was to develop recommendations for the geometric design of driveways that consider standard engineering practice and accessibility needs and provide for safe and efficient travel by motorists, pedestrians, and bicyclists on the affected roadway.
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This report presents a recommended guide specification for the design of externally bonded Fiber-Reinforced Polymer (FRP) systems for the repair and strengthening of concrete bridge elements. This guide specification addresses the design requirements for members subjected to different loading conditions (e.g., flexure, shear and torsion, and combined axial force and flexure). The guide specification is supplemented by design examples to illustrate its use for different FRP strengthening applications. The guide specification is presented in AASHTO LRFD format to facilitate use and incorporation into the "AASHTO LRFD Bridge Design Specifications." The material contained in the report should be of immediate interest to state engineers and others involved in the strengthening and repair of concrete structures using FRP composites.
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